Does anyone know the name of the chainsaw attachment that is used to hollow out logs?
I live in Hawaii and I saw a canoe building Competition a few years ago; the participants were using a chainsaw attachment that looked like a planer at the tip of the chainsaw bar. The configuration was a normal bar, with a modified chain that had no teeth, and a 4 inch wide series of blades at the tip of the bar that was used to hollow out the logs quickly.

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